How debuggers work: Part 1 – Basics

This is the first part in a series of articles on how debuggers work. I’m still not sure how many articles the series will contain and what topics it will cover, but I’m going to start with the basics. In this partI’m going to present the main building block of a debugger’s implementation on Linux – the ptrace system call. All the code in this article is developed on a 32-bit Ubuntu machine. Note